Investigation of Physical and Electrochemical Properties of β-TaxNb1–xPO5 as an Electrode Material for Lithium Batteries
| Autor: | Joshua R. Kim, Fadwa Badway, Glenn G. Amatucci, Matthew Y. Lu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Phase transition
Chemical substance Materials science Nanocomposite General Chemical Engineering chemistry.chemical_element Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences chemistry Chemical engineering Materials Chemistry Lithium 0210 nano-technology Science technology and society Solid solution Monoclinic crystal system |
| Zdroj: | Chemistry of Materials. 28:2949-2961 |
| ISSN: | 1520-5002 0897-4756 |
| DOI: | 10.1021/acs.chemmater.5b05009 |
| Popis: | The effect of intrinsic phase transitions and substitutions on the structural and electrochemical properties of monoclinic β-NbPO5 as an electrode material for lithium or lithium-ion batteries is explored for the first time. Isolation of lower voltage phase transitions of the pure β-NbPO5 was found to be highly effective in improving the long-term cycling stability of the material. An analogous impact to cycling stability was identified through the use of effective solid solutions based on cations such as Ta5+. Resulting materials exhibited excellent cycling stability, exceptionally low first cycle irreversible loss, and excellent 20C rate capability without the need for carbonaceous nanocomposites. |
| Databáze: | OpenAIRE |
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